Beege



(No Model.) 3 Sheets-Sheet 1.

E. VON ZWEIGBERGK.

ROLLING MILL. No. 250,473. Pgtented De0..6,1881.

WITNESSES: I IN B'fiTOR- v ATTORNEY N. PETERS. Phatolilhugmpher,Washington. me.

3 Sheets-Sheet 2.

(No Model.)

B. VON ZWE-IGBERGK.

ROLLING MILL.

Patented Dec. 6,1881.

WITNESSES:

Wail ATTORNEY N wcnzns. Pholwlilhpgmphcn Wmhinglan. o. c.

(No Model.) a Sheets-Sheet 3.

E. VON ZWEIG'BERGK.

ROLLING MILL.

No. 250,473. Patented Den. 6,1881.

WITNESSES I INVENTOR ATTORNEY PETERS. Phowuthn n her. Washin ton. D. c.

Ulvirnn STATES ERNST VON ZlVEIGBERGK,

PATENT Urrrcn.

OF STOOKHOLM, SWEDEN.

ROLLING-MILL.

SPECIFICATION forming part of Letters Patent No. 250,473, dated December6, 1881. Application filed June 30, 1880. (N0 model.) Patented inBelgium May 13, 1880.

To all whom it may concern:

Be it known that I, ERNST voN ZWEIG- BERGK, of Stockholm,in the Kingdomof Sweden, have invented certain new and useful Improvements inRolling-Mills; and I do'hereby declare the following to be a full,clear, and exact description of the invention, such as will enableothers skilled in the art to which itappertains to make and use thesame.

This invention has reference to an improved rolling-mill, by which theiron is rolled with perfectly sharp ed ges to any desired thickness andwidth, at a considerable saving of time, and by means of simpleadjusting mechanism.

The invention consists of a rolling-mill in which two horizontal mainrollers, one of which is fixed, the other vertically adjustable, areemployed in connection with two vertical rolls and mechanism foradjusting them laterally to the required width. The upper horizontalroll is raised or lowered, together with its bearings, in thesupporting-standards by means of adjusting screw-bolts andtransmitting-gearing, the lower half of the bearings being hung tosuspension-rods and balanced by intermediate spiral springs. Thevertical rolls are guided by cross-heads in fixed transverse rails andadjusted laterally by suitable mechanism. To the bearings of the upperhorizontal roll is pivoted atransverse rail, which carries alaterally-adjustable guide-heel, that is set higher or lower with itsguide-rail by a lever and setscrew, so as to bear on the iron bar andprevent the twisting of the same after it has left the rolls.

In the accompanying drawings, which fully represent my invention, Figurelrepresents a front elevation of my improved rolling-mill, partly insection. Fig. 2 is a vertical transverse section on line a; m, Fig. l;and Fig. 3 is a side elevation of the same, showing the mechanism foradjusting the feed-screws of the vertical guide-rolls.

Similar letters of reference indicate corresponding parts.

Referring to the drawings, A A represent theiron supportingstandards ofmy improved rolling-mill. The standards AA support apair of horizontalrolls, B B, and a pair of vertical rolls, 0G, in front of the same. Thehorizontal rolls B B receive rotary motion in the usual manner inrolling-mills, whereas the vertical rolls 0 C receive their motion fromtwo sets of bevel-wheels,ff, and a transverse'shaft, e, which isrevolved by means of gear-wheels d d and a clutch, e, as appears clearlyin Fig. 1. The rolls B B determine the thickness and the vertical rolls0 O the width of the iron bar or plate to be rolled. The lowerhorizontal roll, B, revolves in fixed bearings, while the upper roll, B,canbe raised or lowered by mechanism connected to its journal-bearings Awhich are for this purpose guided in rectangular openings of thestandardsA A. The upper sections of the adjustable bearings of the rollB are acted upon by vertical center screws, 9, the upper smooth ends ofwhich turn in bearings of a transverse top rail, D. The center screws ofboth journal-bearings A receive motion from a vertical shaft, g, piniong and intermediate gearing, 9 The shaft gcarries at its lower end aconical gear-wheel, h, which is thrown in or out of gear with twobeveled wheels, h, on the shaft of the upper roll, B, by means of adouble frictioirclutch, 71?, so that when the clutch is pushed into gearwith either one of the beveled wheels 71. the verticaltransmitting-shaftis turned in one direction or the other, and thereby acorresponding motion imparted to the adjusting center screws, 9, bywhich the upper sections of the journalbearings A are raised or loweredwith the roll B, as required. This is accomplished by confining the toprail, D, between collars on the feed-screws, by which the rail iscompelled to move up and down therewith. The screws 9 press upon theupper bearings of the roll B and force the same downward. When they areturned in reverse direction the roll is raised by virtue of theconnection of the rods Z with the lower sections of the bearings of theroll and the top rail. The lower sections of the journal-bearings A arehung to the lower ends of vertical screw-rods l, which are connected attheir upper ends to the top rail, D, of the ma chine, so as to cause thelower sections to follow the motion of the upper sections of thebearings. Spiral springs t are placed around the supporting-rods 1,between the top of the rection, the springs taking-thereby the place ofthe weights heretofore in use for this pur pose.

The vertical rolls C turn in cross-heads m,

of which the upper cross-heads are guided by end grooves in fixedtransverse guidebars m, while the lower cross-heads are guided on asquare or oblong guide-rail, m 0f the vertical rolls 0 0, one onlyrequires adjustment, the other roll being, therefore, connected to oneof the side standards 'by means of screw rods and nuts t, as shown inFig. 1. The second roll, 0, however, requires frequent adjustment to thedifferent widths of the iron to be rolled. It is for this purposeadjusted laterally by an adjusting-gear, which consists of a hand-wheel,19, arranged at the upper end of an inclined connecting-shaft, q, thelower end of which sets by a bevel-gear,p, a vertical shaft, q, and by asecond double conical gearing. 1 a second vertical shaft, 1 in motion.By a bevel-gearing, 19 below the bevel-gear p, a horizontal screwrod,4*, by the intermediate bevel-wheel of the gearing g a second horizontalscrew-rod, r, and by a bevel-gearing, q, of the upper shaft, Q3, a thirdhorizontal screw-rod, T are set in motion. The horizontal screws 1' r 1are connected to the journal-bearings s s s of the vertical roll 0, andimpart lateral motion to the same and its cross-heads and revolving gearwhenever the adjusting hand-wheel p is set in motion. In order toregulate the exact adjustment of the upper horizontal roll, B, agraduated scale, a, is arranged at the upper parts of one of the sidestandards, near to the center screw, g. on which, in conjunction with afixed projecting index, n, of the center screw, g, the exact ligures areindicated to which the upper roll has to be set for producing a propergrade of iron. The left-hand screw g is provided with a fixed pointer, 9which rotates therewith, and indicates, in connection with a verticalarm, 9 of the top rail, D, the relative position of the gear-wheel g andconsequently the number of revolutions required to produce a certainthickness of iron, in conjunction with the scale a and index n.

For the purpose of preventing the twisting of the iron bar after it hasleft the rolls B B, a guide-heel, E, is arranged intermediately betweenthe vertical rolls 0 O, the guide-heel E being applied to a transverseguide-rail, E, which is pivoted to the bearings A of the upperadjustable roll, 13. The guide-heel E is capable of lateral adjustmenton the transverse guiderail E, which is for this purpose grooved at itstop and bottom, so as to receive and guide the heel E by thetongue-shaped projections. After adjustment the upper part of the heelis rigidly secured to the guide-rail by a clamp-screw. A fixedlever-arm, E at one end of the guide-rail E, works in connection with aswiveled rod, 0, and nut 0, for the purpose of axially turning theguide-rail E, and setting thereby the heel E higher or lower, so as tobear on the iron bar as it leaves the rolls, and prevent any change inits shape by the twisting of the iron. The horizontal as well as thevertical rolls are thus capable of quick adjustment tothe proper size ofthe iron to be rolled, either during the motion of the rolls or beforethey are started. They are thereby adapted to turn out bar-iron of anydesired size in a smooth and finished manner, without the use of groovedrolls and with sharp edges, at a considerable saving of time.

I am aware that vertical rolls which are capable of lateral adjustmenthave been used in connection with horizontal rolls in rollingmills, andI therefore do not claim this feature.

Having thus described my invention, I claim as new and desire to secureby Letters Patent- 1. The combination, with the upper horizontal roll,B, mounted in adjustable bearings, of the screws g, top rail, D, rods 1,spiral springs l, gearing g 9 shaft g, gears h h, double clutch h,splined to journal of rolls B, and the lever for operating said clutch,substantially as set forth.

2. The combination, with the upper horizon tal roll, B,'mounted in adjustable bearings, of top rail, D, gearing g 9 pointer 9, vertical arm 9attached to top rail, D, screws g, shaft g, gears h h, and double clutch7L2, as specified.

3. The combination, with rolls 0 G, bearings s 8 8 rolls B B, and gearsff, of the screws r 1" r shafts q g double gearing g gears 1 13 1),shaft q, and hand-wheel p, as described.

4:. The combination, with the rolls 0 C, the bearings 8 8'8, screws 1* rW, shafts q g double gearing g gears 19 p, shaft q, and hand-wheel p,ofthe stop-screws of roll 0, substantially as set forth.

5. In a rolling-mill, the combination of the horizontal rolls B B andthe vertical rolls 0 U with a pivoted transverse guide-rail, E, carryingthe guide-heel E, and with mechanism for laterally and verticallyadjusting the guide-heel, substantially as described.

6. In a rolling-mill, the combination of a laterally-adjustableguide-heel, E, with a transverse guide-rail, which is pivoted to thejournal-bearings of the upper horizontal roll,

and provided with a fixed lever-arm, E and adjusting swivel-screw andnut 0 0,for the purpose of raising or lowering the heel, substan-.tially as set forth.

In testimony that I claim the foregoing I have hereunto set my hand this8th day of May, 1880.

ERNST VON ZVEIGBERGK.

Witnesses:

OSKAR A. NUELL, GUSTAF ADAM WIMAN.

